An Amazon spokesperson declined to comment to Business Insider. Deliveroo did not immediately respond to a request for comment.

Deliveroo is one of Europe’s biggest startup success stories. Founded in 2013 by Americans Will Shu and Greg Orlowski, Deliveroo enlists contract employees as couriers, who deliver food from local restaurants in some 200 cities all over the UK, the European Union, Asia, and Australia.

Last year, Deliveroo raised $US482 million in venture funding, in a deal valuing the company at around $US2 billion. According to the Bloomberg report, Deliveroo would not be interested in selling for any price that’s not “considerably higher” than its current valuation.

The startup is also one of the chief international rivals to UberEats, the ride-hailing giant’s own food-delivery service. Under CEO Dara Khosrowshahi, Uber has redoubled its efforts around food delivery ahead of a planned 2019 IPO.

On the subject of IPOs, Deliveroo’s Shu said earlier this year that a debut on the public markets was not in the cards for his startup. However, rumours have persisted that Deliveroo has – or, perhaps, had – IPO ambitions. At the time of its 2017 fundraise, Deliveroo was operating at gross margins of 0.7%; a figure that some pundits thought was too small. According to The Telegraph, the company has now pushed its plans for an IPO from 2019 to 2020.